Home / 12,270.24-18,402.05-5,246.76

Finding the Fourth Proportional to 12,270.24, 18,402.05 and 5,246.76

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Solution

The fourth proportional to 12,270.24, 18,402.05 and 5,246.76 is: 7,868.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,270.24 : 18,402.05 = 5,246.76 : x
  2. Step 2: Convert to fraction form
    12,270.24/18,402.05 = 5,246.76/x
  3. Step 3: Cross multiply
    12,270.24x = 18,402.05 × 5,246.76
  4. Step 4: Simplify right side
    12,270.24x = 96,551,113.62
  5. Step 5: Solve for x
    x = 96,551,113.62/12,270.24
  6. Step 6: Final answer
    x = 7,868.72

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.